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Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem

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On Monday, May 20, 2013 10:15:46 PM UTC-7, sfeam wrote:
> Rich Cook wrote:
> 
> 
> 
> > Hello, I am in charge of installing and maintaining gnuplot on our
> 
> > clusters and am by no means an expert.  Our user has reported the
> 
> > following is occurring:
> 
> > 
> 
> > gnuplot> plot 'test.png' binary filetype=png with rgbimage
> 
> >          This copy of gnuplot cannot read png/gif/jpeg images
> 
> > 
> 
> > 
> 
> > After googling a bit, I have looked in the build log for PNG entrails
> 
> > and see the following:
> 
> > 
> 
> > 
> 
> > checking for gdlib-config... /usr/bin/gdlib-config
> 
> > checking for gdImageCreateTrueColor in -lgd... yes
> 
> > checking gd.h usability... yes
> 
> > checking gd.h presence... yes
> 
> > checking for gd.h... yes
> 
> > checking for gdImageGif in -lgd... yes
> 
> > checking for gdImageGifAnimBegin in -lgd... yes
> 
> > checking for gdImageJpeg in -lgd... yes
> 
> > checking for gdImageStringFT in -lgd... yes
> 
> > checking for gdImagePng in -lgd... yes
> 
> > 
> 
> > ...
> 
> > 
> 
> >   jpeg terminal: yes
> 
> >   gif terminal: yes (with animated gif)
> 
> >   png terminal: yes
> 
> >     (jpeg, gif and png terminals can use TTF fonts)
> 
> >   pdf terminal: no (requires libpdf)
> 
> > ...
> 
> > 
> 
> >   cairo-based pdf and png terminals: yes
> 
> > 
> 
> > 
> 
> > 
> 
> > I don';t understand why gnuplot thinks it cannot handle png files. 
> 
> > Can someone help me debug this one? Thanks.
> 
> 
> 
> That seems odd.  Please report the output from
> 
>   gnuplot -e "show version long"
> 
> 
> 
> There should be an entry  +GD_PNG
> 
> If this is present then it indicates that indeed the program should
> 
> be able to read png files.  If it's missing then I guess something
> 
> must have gone wrong with the configure+build at a later stage after
> 
> it had already reported that it was going to include png support.
> 
> You might have a look in config.log for error messages that mention
> 
> libgd. But really the info you show is self-contradictory so I
> 
> don't have a good guess at what could be wrong.
> 
> 
> 
> 	Ethan

The output seems confusing.  There is no +GD_PNG.  But there is -LIBGD.  I'm not sure where in the config.log or build process it decided to disable the PNG support. 


rcook@rzgpu2 (lclocal.el6): gnuplot -e "show version long" 

        G N U P L O T
        Version 4.6 patchlevel 1    last modified 2012-09-26 
        Build System: Linux x86_64

        Copyright (C) 1986-1993, 1998, 2004, 2007-2012
        Thomas Williams, Colin Kelley and many others

        gnuplot home:     http://www.gnuplot.info
        faq, bugs, etc:   type "help FAQ"
        immediate help:   type "help"  (plot window: hit 'h')
Compile options:
-READLINE  +LIBREADLINE  +HISTORY  
-BACKWARDS_COMPATIBILITY  +BINARY_DATA  
-LIBGD  
-USE_CWDRC  +X11  +X11_POLYGON  +MULTIBYTE  +X11_EXTERNAL +USE_MOUSE  +HIDDEN3D_QUADTREE  
+DATASTRINGS  +HISTOGRAMS  +OBJECTS  +STRINGVARS  +MACROS  +IMAGE  +USER_LINETYPES +STATS 

GNUPLOT_DRIVER_DIR = "/usr/local/tools/gnuplot-4.6.1/libexec/gnuplot/4.6"
GNUPLOT_PS_DIR     = "/usr/local/tools/gnuplot-4.6.1/share/gnuplot/4.6/PostScript"
HELPFILE           = "/usr/local/tools/gnuplot-4.6.1/share/gnuplot/4.6/gnuplot.gih"

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Thread

"This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-20 19:15 -0700
  Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-20 19:17 -0700
  Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem sfeam <sfeam@users.sourceforge.net> - 2013-05-20 22:15 -0700
    Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-21 09:13 -0700
      Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-21 09:16 -0700
        Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-21 09:49 -0700
      Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem sfeam <sfeam@users.sourceforge.net> - 2013-05-21 11:52 -0700
        Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem Rich Cook <wealthychef@gmail.com> - 2013-05-23 09:44 -0700
  Re: "This copy of gnuplot cannot read png/gif/jpeg images" problem ab <ab.3942@googlemail.com> - 2013-05-22 00:20 -0700

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